James, Sirius, Albus
James was still on the couch when everyone had gone. Dylan was in Al's bedroom with Cass. His parents were up and around, and he knew that they were awake to keep an eye on him, but he didn't want to go to his room and be alone. Instead, he stayed on the couch.
When Sirius arrived, he was alone. He assumed that Remus and James used the other entrance to get to their rooms. "Hey, did you have fun?" he asked, putting the magazines away. "Come, sit down. I was missing my human pillow."